Forwarding email with embedded photo

I received an email containing text and a photo (the photo was part of the mail not an attachment). I forwarded this by copying the original mail complete with photo. Pasting the mail into the forward mail produced an exact replica of the original mail. Recipients have complained that they received the text but the photo was a blank box marked "in line image" which could not be opened. How can this type of mail be forwarded so that recipients can see the photo?